TESTS: add regression tests for ACL and sample expression parsers
These ones trigger each of the error messages in the code about
argument and converters syntax.
diff --git a/tests/test-sample-fetch-args.cfg b/tests/test-sample-fetch-args.cfg
new file mode 100644
index 0000000..cddf4fe
--- /dev/null
+++ b/tests/test-sample-fetch-args.cfg
@@ -0,0 +1,36 @@
+# This config file aims to trigger all error detection cases in the sample
+# fetch expression parser related to the fetch arguments.
+
+# silence some warnings
+defaults
+ mode http
+ timeout client 1s
+ timeout server 1s
+ timeout connect 1s
+
+frontend 1
+ bind :10000
+
+ # missing fetch method
+ http-request add-header name %[(arg)]
+
+ # unknown fetch method 'blah'
+ http-request add-header name %[blah(arg)]
+
+ # missing closing ')' after arguments to fetch keyword 'req.hdr'
+ http-request add-header name %[req.hdr(]
+
+ # cannot be triggerred : "returns type of fetch method '%s' is unknown"
+
+ # fetch method 'always_true' : no argument supported, but got 'arg'
+ http-request add-header name %[always_true(arg)]
+
+ # fetch method 'req.hdr' : failed to parse 'a' as 'signed integer' at position 2
+ http-request add-header name %[req.hdr(a,a)]
+
+ # invalid args in fetch method 'payload_lv' : payload length must be > 0
+ http-request add-header name %[payload_lv(0,0)]
+
+ # fetch method 'payload_lv' : expected type 'unsigned integer' at position 1, but got nothing
+ http-request add-header name %[payload_lv]
+